ClassicUO - an open source implementation of the Ultima Online Classic Client.
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Updated
Sep 29, 2026 - C#
ClassicUO - an open source implementation of the Ultima Online Classic Client.
MobileUO - the first mobile client for Ultima Online!
Dust765 Classic UO fork for cheaters - The Dark Truth
Dust765 Classic UO fork for cheaters:
Classic Ultima Online client ported from ClassicUO to Godot 4 .NET
Ultima Online server in C# on .NET 10, with reusable libraries for networking, persistence, Lua scripting and internal APIs
An external Journal viewer for Ultima Online.
socket based relay server to connect multiple clients of Dust765's fork of ClassicUO
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